//02:2.5:ex2.6.cpp:
#include <iostream>

// function Demonstration Function
// prints out a useful message
void DemonstrationFunction()
{
    std::cout << "In Demonstration Function\n";
}

// function main - prints out a message, then
// calls DemonstrationFunction, then prints out
// a second message.
int main(void)
{
    std::cout << "In main\n";
    DemonstrationFunction();
    std::cout << "Back in main\n";

    return 0;
}